Search found 28 matches

by junzhao
Wed May 09, 2018 1:41 am America/New_York
Forum: Home
Question: gpt.sh reprojection issue
Replies: 4

gpt.sh reprojection issue

Hi Danny,Thanks for your reply. The .xml file used for the reprojection is attached. I only ran it for one scene collected by MODIS/Aqua. The l2 file name is A2009190055500.L2_LAC. The area of interest was defined by 19-23.5 N and 111.5-117.5 E. BTW, the l2 file was generated with l2gen in a hdf4 fo...
by junzhao
Tue May 08, 2018 6:00 am America/New_York
Forum: Home
Question: gpt.sh reprojection issue
Replies: 4

gpt.sh reprojection issue

Hi,I am using seadas V7.4. I tried to reproject a l2 file generated by l2gen. When the output file format was set to hdf5, the processing failed. The error message is attached below:A problem occurred during processing the target product processing.Type: OperatorExceptionMessage: Not able to write p...
by junzhao
Mon May 29, 2017 9:32 am America/New_York
Forum: Home
Question: Landsat 8 GSM and GIOP chl difference
Replies: 1

Landsat 8 GSM and GIOP chl difference

Hi there,I processed one Landsat 8 scene and generated chlorophyll maps using GSM and GIOP algorithms. But there are big differences in terms of valid pixels. Please see the attached maps. From my understanding, it is reasonable for the difference in values of chlorophyll from the two algorithms. Bu...
by junzhao
Sun Nov 16, 2014 12:26 am America/New_York
Forum: Home
Question: HICO l2 projection problem
Replies: 6

HICO l2 projection problem

BTW, is it possible to do the reprojection from the command line?
Jun
by junzhao
Sun Nov 16, 2014 12:20 am America/New_York
Forum: Home
Question: HICO l2 projection problem
Replies: 6

HICO l2 projection problem

Hi Sean,Thanks. You're right. If the 'bicubic' resampling method is selected, the artifact is gone.@Norman. The step I used wasProcessing -> Reproject.The output format was set as 'GeoTIFF'. The other parameters are as default.According to Sean's reply, everything is fine now...
by junzhao
Thu Nov 13, 2014 1:45 am America/New_York
Forum: Home
Question: HICO l2 projection problem
Replies: 6

HICO l2 projection problem

Hi there,I posted the same question in 'SeaDAS 7 - General questions'. But I haven't got any responses. Maybe I posted in the wrong place. So I post it again.A hico level 2 product was projected in Seadas V7.1. However, there are some problems at the right and left corners. An representa...
by junzhao
Tue Aug 27, 2013 2:21 am America/New_York
Forum: Home
Question: HICO processing problem
Replies: 4

HICO processing problem

Hi Sean,
Thanks for you reply.
Regarding the l1mapgen call, the default bands used are 665, 560, and 412. Then which option should be set to use the following bands: 639, 553, and 461 nm ?

Jun
by junzhao
Mon Aug 26, 2013 6:23 am America/New_York
Forum: Home
Question: HICO processing problem
Replies: 4

HICO processing problem

Hi Sean,When HICO L1B data were processed in command line using l2gen (SeaDAS v7.0), there are no valid data in the output hdf file. The command I run wasl2gen ifile=H2013206053504.L1B_ISS ofile=test.hdfWhen l1mapgen command was run, there was no output. I just usedl1mapgen ifile=H2013206053504.L1B_...